Annoying Jolt / Slam when accelerating

[Blackbeast95]

Hi everyone, I recently purchase a 2004 X5 4.4 this year and it had transmisson problems and we had the transmisson rebuilt already.

couple months after the rebuilt transmisson when accelerating or past the "kick down point" the car would jolt / slam i would have to be going around 30 or 40 MPH then press down the gas and it would happen ( not everytime but quite often) if i slowly acceletate the problem does not happen and drives just fine.
there is also no engine lights or sevice lights on.

I never scanned it recently but going to soon I've read many of posts it could be the Mass air flow sensor that could be causing this im wondering if it safe to unplug the sensor to go for a small drive and see if the problem happens what is your guys ideas? thanks